Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

A Few Clouds

78°F

26°C

Humidity 90%
Wind Speed E 5 mph
Barometer 29.73 in (1006.0 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 12 Mar 6:54 am ChST
Extended Forecast for

Agat GU

  • Today

    Today: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 85. South wind 13 to 17 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 78. South wind 14 to 18 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%.

    Low: 78 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Cloudy, with a high near 86. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%.

    High: 86 °F

    Heavy Rain
    and Breezy

  • Friday Night

    Friday Night: Scattered showers.  Mostly cloudy, with a low around 78. Southwest wind 11 to 20 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers.  Partly sunny, with a high near 86. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms. Mostly cloudy, with a high near 85. South wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Tonight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 78. South wind 14 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 86. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 78. Southwest wind 11 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Saturday
Scattered showers. Partly sunny, with a high near 86. Northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 78.
Sunday
Partly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 78.
Monday
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Agat GU
 13.38°N 144.67°E
6:06 am ChST Mar 12, 2026
7am ChST Mar 12, 2026-6pm ChST Mar 18, 2026
 
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